National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Dangerous Heat and Heavy Rainfall Today

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley today. Heat Advisories remain in effect. Heavy to excessive rainfall today could bring areas of flooding to parts of the northern High Plains and Midwest into the Ohio Valley. Flood Watches remain in effect. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Overcast

63°F

17°C

Humidity 90%
Wind Speed E 13 G 25 mph
Barometer 30.05 in (1017.2 mb)
Dewpoint 60°F (16°C)
Visibility 9.00 mi
Last update 20 Sep 5:52 pm CDT
Extended Forecast for

Forest Lake IL

  • Tonight

    Tonight: Areas of drizzle before 10pm, then a slight chance of showers after 1am. Cloudy, with a low around 57. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Areas Drizzle

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Cloudy, with a high near 62. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 53. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 62. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Areas of drizzle before 10pm, then a slight chance of showers after 1am. Cloudy, with a low around 57. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday
A 20 percent chance of showers before 1pm. Cloudy, with a high near 62. East northeast wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 53. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 62. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 52. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 67.
Friday Night
Mostly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
Partly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Forest Lake IL
 42.2°N 88.06°W
Last Update:
2:46 pm CDT Sep 20, 2026
Forecast Valid:
6pm CDT Sep 20, 2026-6pm CDT Sep 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation